Crew members from the Coast Guard Cutter Healy, a medium Polar icebreaker, navigate the cutter through ice floe in the Arctic Ocean during its annual Arctic patrol in support of scientific research and Polar operations, Aug. 2, 2107. The Coast Guard’s leadership role in providing a continued Arctic presence is essential to national security, maritime domain awareness, freedom of navigation, U.S. sovereign interests and scientific research. U.S. Coast Guard video by Senior Chief Petty Officer Rachel Polish